Process of improving textile materials



Patented Jan. 10, 1939 UNITED STATES PATENT OFFICE raocEss or nuraovmd TEXTILE MATERIALS No Drawing. Application December 5,

rial No. 53,005. In Germany December 13,

Claims.

The present invention relates to improved textile materials and to a process of producing same.

In the copendingapplication Ser. No. 739,714

ing the said materials with an aqueous solution of a compound reacting as formaldehyde in the presence of a non-oxidizing acid-reacting comlO'pound, acting on the said material with an organic non-resin compound" containing a basic group and at least one radicle with at least four carbon atoms and heating to an elevated temperature.

We have now 'found that textile materials may also be improved without the addition oi. acid or compounds having an acid reaction by treating them with salts of amines having more than five carbon atoms in the molecule and an aldehyde and subjecting the textile materials to a treatment at elevated temperatures. Salts suitable'for the said process are for example the chlorides, sulphates and oxalates of those amines which contain a cyclic or heterocyclic radicle'cr 26 a straight or branched carbon chain with more than five carbon atoms, which chain may also be interrupted by other atoms or atomic groups, "such as oxygen or sulphur atoms or =NH groups. Particularly suitable are soluble salts of the said 80 amines. Salts of the said kind are for example octylaminehydrochloride, dodecylamine sulphate, stearylamine acetate, the hydrochlorides, sulphates, formates, lactates or oxalates of amines obtained from commercial stearic acid. coconut fatty acids, palm kernel oil fatty acids train oil fatty acids, naphthenic acids, montanic acids or resinic acids, for example by converting the said acids into their nitriles and reducing the nitriles. Octylfurfurylamine hydrochloride, glucamine sulphate and phenylstearylamine hydrochloride may also be employed as initial materials. The presence of largenamounts of acids than are necessary for the formation of salts of the said amines is to be avoided in the present v 40 case. The said salts may be employed in the form of their solutions or dispersions.

As aldehydes may be used in the present process for example formaldehyde, acetaldehyde, glyoxal and the like. Particularly suitable are the aliphatic aldehydes having a low molecular weight. The aldehydes may be employed in the form of their aqueous solutions, or for example in the case of formaldehyde, also in the gaseous sta e. r

The impregnated textile'materials aresubsequently treated at temperatures above-100 (2.; preferably temperatures of from about 100 to 200 C., are employed. Generally speaking it is sufflcient to heat the textile materials for a short time for example for 15 to minutes up to 5- about to C.

The textile fibres or fabrics treated according to the. process described possess a good stability to creasing and an agreeable soft touch.

The following examples serve to illustrate how 10 the present inventionis carried out in practice, but the invention is not restricted to these examples. The parts are by weight.

Example 1 Example 2 30 parts of stearylamine sulphate and 30 parts of'commercial glyoxal are dissolved in 300 parts of distilled water. A viscose artificial sill: fabric is impregnated by handling it for a short time 30 at room temperature in this solution and then treated at about 100,C. The fabric thus treated becomes very stable to creasing.

Example 3 8 parts of the hydrochloride of the commercialmixture of amines (obtainable by converting coconut fatty acids into their nitriles and .reduction of the said nitriles) are-dissolved in 100 parts of water. In this solution viscose artificial silk fabric is treated for about 10 minutes at between 15 and 20 C., squeezed off and then treated for about 20 minutes in a space contain: ing formaldehyde vapors. The fabric is then sub jected to a heat treatment as described in Example 1. It has become stable to creasing and has a soft touch.

Whatwe claim is:

1. The process of rendering textile materials resistant to creasing which comprises causing a salt of an aliphatic amine containing more than 50 five carbon atoms in the molecule and an aldehyde to act on textile materials and heating the textile materials to an elevated temperature.

2. The process of rendering textile materials resistant to creasing which comprises causing a 55 3. The process of rendering textile materials resistant to creasing which comprises causing a salt of an aliphatic amine containing more than five carbon atoms in the molecule and an aldehyde to act on textile materials and heating the textile materials to a temperature from about 100 to about 120 C.

4. The process ofrendering textile materials resistant to creasing which comprises causing a salt of an aliphatic amine containing more than live carbon atoms in the molecule and an aidehyde to act on textile materials in an aqueous medium and heating the textile materials to an elevated temperature.

5. .The process of rendering textile materials resistant to or inggyhich comprises causing a water-soluble??? of an aliphatic amine containing more tha five carbon atoms in the molecule and an aldehyde to act on textile materials and heating the textile materials to an elevated temperature. H

6. The process or rendering textile materials resistant to creasing which comprises causing a water-soluble salt of an aliphatic amine containing at least one carbon chain with from 8 to 18 carbon atoms and formaldehyde to act on textile materials and heating the textile materials to an elevated temperature.

'7. The process of rendering textile materials resistant to creasing which comprises causing a water-soluble salt of an aliphatic amine containing at least one carbon chain with from 8 to 18 carbon atoms and glyoxal to act on textile materials and heating'the textile material to an elevated temperature.

8. The process of rendering textile materials resistant to creasing which comprises causing a mixture of water-soluble salts of aliphatic amines derived from fatty acids of vegetal origin and a low molecular aliphatic aldehyde to act on textile materials and heating the impregnated materials to an elevated temperature.

salt of an aliphatic amine containing more than five carbon atoms in the molecule and an aldehyde in gaseous state to act on textile materials and heating the textile materials to an elevated temperature.

. to an elevated temperature,

ERNST KOCH- GEORG sCHULZ- 

